Research output: Contribution to journal › Article › peer-review
Sharp estimates of best approximations by deviations of Weierstrass-type integrals. / Vinogradov, O.L.
In: Journal of Mathematical Sciences, No. 6, 2013, p. 628-638.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Sharp estimates of best approximations by deviations of Weierstrass-type integrals
AU - Vinogradov, O.L.
PY - 2013
Y1 - 2013
N2 - We establish the estimates (Formula presented.) where W is a kernel of special type that is integrable on R and A σ(f)P is the best approximation of a function f with respect to a seminorm P by entire functions of exponential type not greater than σ. For the uniform and integral norms, we find the least possible constant K. The estimates are obtained by linear methods of approximation. Bibliography: 7 titles. © 2013 Springer Science+Business Media New York.
AB - We establish the estimates (Formula presented.) where W is a kernel of special type that is integrable on R and A σ(f)P is the best approximation of a function f with respect to a seminorm P by entire functions of exponential type not greater than σ. For the uniform and integral norms, we find the least possible constant K. The estimates are obtained by linear methods of approximation. Bibliography: 7 titles. © 2013 Springer Science+Business Media New York.
U2 - 10.1007/s10958-013-1551-y
DO - 10.1007/s10958-013-1551-y
M3 - Article
SP - 628
EP - 638
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
IS - 6
ER -
ID: 7519684